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Bingel [31]
3 years ago
11

What is the answer for "The points (4,r) and (8,-11) lie on a line with slope -3. Find the missing coordinate r."?​

Mathematics
2 answers:
Black_prince [1.1K]3 years ago
3 0

Answer:

  • r = 1

Step-by-step explanation:

<u>Use the slope formula:</u>

  • m = (y₂ - y₁)/(x₂ - x₁)
  • m = -3, x₁ = 4, y₁ = r, x₂ = 8, y₂ = -11

<u>Substitute values and solve for r:</u>

  • -3 = (-11 - r)/(8 - 4)
  • -3 = -(11 + r)/4
  • 11 + r = 12
  • r = 12 - 11
  • r = 1
Ksenya-84 [330]3 years ago
3 0

Answer:

The answer to your question is R=1

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